Work with exempt GMOs do not need to be carried out in certified laboratories.

The D.E.P. then set up certified laboratories at each of our 630 public drinking-water supply facilities.

An EPA Web site provides a list of state certification officers or links to certified laboratories in your state.

Samples are taken in a hurry to a certified laboratory: money for Federal Express.

If you are concerned about copper in your drinking water, have the water tested for copper by a certified laboratory.

It requires manufacturers and importers of all children's products to have batches of their products tested by an independent certified laboratory.

Standard Methods for the Examination of Water and Wastewater list the following methods used by certified laboratories testing wastewater in the United States:

In Korea, manufacturers or importers of new chemicals are required to get toxicity examination on the chemicals by submitting a document on toxicity issued by certified laboratories.

To resolve this, the government altered laws in June 2008 so that certified laboratories include laboratories in OECD countries.

A list of certified laboratory of labs are available from your state or local drinking water authority.